Spring-controlled roller side bearing.



C. B. PATCH.

SPRING CONTROLLED ROLLEHSIDE BEARING.

APPLICATION FILED IuLY I4. I9Is.

L22578. Patented Indy/8,1917.v

IN VEN TOR.

@lung late/ IINIIFD STATES PATENT CFFIQE.

CALVIN B. PATCH, 0F GLENELLYN, ILLINOIS, ASSIGNOR TO WILLIAM I-I. MINER, OF

l CHAZY, NEW YORK.

SPRING-CONTROLLED .ROLLER SIDE BEARING.

Specification of Letters Patent.

Patented May 8, 1917.

Application i1ed July 14, 1916. Serial No. 109,233.

To all whom t may concern:

Be it known that I, CALVIN B. PATCH, a citizen of the United States, residingl at Glenellyn, in the county of Dupage and State of Illinois, have invented a certain new and useful Improvement in Spring- Controlled Roller Side Bearings, of which the following is a full, clear, concise, and exact description, reference being had to the accompanying drawings, forming a part of this specication.

This invention relates to improvements in spring controlled roller side bearings.

One object of the invention is to provide a simple, relatively cheap roller side bearing for railway cars and so arranged that the roller will be automatically returned to central or normal position after each actuation.

In the drawing forming a part of this specification, Figure 1 is an end elevation of portions of a truck and body bolster of a car showing my improvements in connection therewith. Fig. 2 is an enlarged, longitudinal sectional view of the roller bearing and taken on the line 2 2 of Fig. l. Fig. 3 is a vertical, transverse section taken substantially on the line 3 3 of Fig. 2. Fig. 4 is a perspective view of one of the spring caps. And Fig. 5 is a central sectional view of the spring cap shown in Fig. 4.

In said drawing, 10 denotes the body bolster and 11 the truck bolster which are pivotally connected at their centers in the usual manner. As shown, the body bolster is provided with a striking plate 12 and the truck bolster has applied thereto the improved side bearing designated generally by the reference A.

Improved side bearing A preferably comprises a base casting 13 having extended bottom flanges 14-14 by which it is riveted to the truck bolster. The base casting is furthermore provided with upstanding side walls 15-15 and curved end walls 16-16, the latter conforming to the curvature of the anti-friction roller C and limiting the movements thereof, as will be understood. On the inner side, the base casting is provided with a series of teeth 17 which coperate with a corresponding series of teeth 18 on the under-face of the roller C, whereby the latter is substantially geared to the base casting and compelled to rotate, as will be hereinafter described.

The roller C is provided with an axially located recess 19 and extending at right angles to said recess at the center of the roller is a xed pin 20 to which are secured a pair of spring 21-21 at their inner ends. At their outer ends each of the springs 21 fits within a spring cap designated generally by the reference D, the latter comprising a hollow cylindrical portion 22, parallel upper and lower walls A2.3*23 and an outside, vertical wall 24. Each of the side walls 15 of the base casting is provided along its upper portion with an offset section 25 which, together with the top strap or guide plate 26 secured thereon, forms a guide or channel for the longitudinal movements of the corresponding spring cap D. On the interior of each cylindrical portion 22, each spring cap is provided with a pair of spaced lugs 27, over which the end of the corresponding spring 21 lits and between which the extreme bent end is located to prevent the spring twisting relatively to the spring cap.

From the preceding description, it will be seen that the springs 21 are hooked over the pin 20 and hence prevented from rotation with respect to the roller C. The springs are also non-rotatably secured to their respective spring caps D. Hence, as the roller C is actuated, the springs 21 will be twisted and at the same time, the spring caps D, which have their cylindrical portions 22 extended within the recess 19 of the roller, will be shifted longitudinally within the guide channels provided therefor. Upon release of the pressure on the roller, the stored up energy on the twisted springs will tend to rotate the roller C. 0n account of the roller C being geared to the base casting, the roller C must necessarily roll on the base casting and in so doing, the spring caps D will necessarily travel in unison therewith.

I claim:

1. In a roller side bearing, the combination with a base casting, of a roller located therein, spring caps longitudinally slidably mounted in said base casting, and springs extending from said caps to the interior of the roller, the latter and the spring caps being movable in unison.

2. n a roller side bearing, the Combination with a base casting, of a roller located therein, spring caps longitudinally slidably mounted lin said base casting, and springs extending from said caps to the interior of the roller, the latter and the spring caps being movable in unison, the roller and the base casting being geared together.

3. In a roller side bearing, the combination with a base casting, oa roller, the base casting and roller having meshing teeth, spring caps longitudinally slidably mounted on the base Casting, and springs extending from the roller to said springV caps, the springs being non-rotatably secured both to the roller and to the respective spring caps.

Vil. In a roller side bearing, the eoinbi'na-Y tion with a base casting. having` side Walls, the latter being provided with longitudinally extending guide channels, of spring caps slidably mounted in said channels, a roller 'located Within the base Casting and having a central peiforation,` the inner ends of said spring caps extending into saidfperforation, and springs extending from said spring caps te the interior lof the roller and nen-rotatably secured Aat their ends to the roller and respeetive spring caps.

5. In a roller side bearing, the combination With aV base casting having side Walls, the latter being provided With longitudinally extending guide channels, o spring Caps slidably mounted in said channels, a roller located within the base casting and having a central perforation, the inner ends of said spring caps extending into said perforation, and springs extending from said spring Caps to the interior of the roller and non-rotatably secured at their ends to theV roller and respective spring caps, the roller and base castinghaving meshing gear teeth.

ln Witness that 'l Claim the foregoing l have hereuntol subscribed my-narne this 12th day of July, 1916.

CALVN B. PATCH.

vVitnessesI I Y AELIzABn'rn M. BRITT,

GroLDrE A. BISHOP.

Gopies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents. Washington, D. G. 

